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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.spi;
15  
16  import java.util.Iterator;
17  
18  import ch.qos.logback.core.Appender;
19  
20  /**
21   * Interface for attaching appenders to objects.
22   * 
23   * @author Ceki Gülcü
24   */
25  public interface AppenderAttachable<E> {
26    /**
27     * Add an appender.
28     */
29    public void addAppender(Appender<E> newAppender);
30  
31    /**
32     * Get an iterator for appenders contained in the parent object.
33     */
34    public Iterator<Appender<E>> iteratorForAppenders();
35  
36    /**
37     * Get an appender by name.
38     */
39    public Appender<E> getAppender(String name);
40  
41    /**
42     * Returns <code>true</code> if the specified appender is in list of
43     * attached attached, <code>false</code> otherwise.
44     */
45    public boolean isAttached(Appender<E> appender);
46  
47    /**
48     * Detach and stop all previously added appenders.
49     */
50    void detachAndStopAllAppenders(); 
51  
52    /**
53     * Detach the appender passed as parameter from the list of appenders.
54     */
55    boolean detachAppender(Appender<E> appender);
56  
57    /**
58     * Detach the appender with the name passed as parameter from the list of
59     * appenders.
60     */
61    boolean detachAppender(String name);
62  }